/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --text-color: #374151;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

.btn-light {
    background: white;
    color: var(--primary-color);
}

.btn-light:hover {
    background: var(--light-color);
}

.btn-block {
    width: 100%;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 45px;
    height: 45px;
    object-fit: contain;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-color);
}

.logo-text .highlight {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.btn-contact {
    background: var(--primary-color);
    color: white;
    padding: 10px 25px;
    border-radius: 6px;
}

.btn-contact:hover {
    background: var(--secondary-color);
}

.btn-contact::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ==================== HERO SECTION ==================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,165.3C1248,171,1344,149,1392,138.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-logo {
    margin-bottom: 80px;
    animation: fadeInUp 1s ease;
}

.hero-logo img {
    width: 900px;
    height: auto;
    max-width: 90%;
    margin: 0 auto;
    display: block;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== SECTIONS ==================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-color);
    opacity: 0.8;
}

/* ==================== SERVICES ==================== */
.services-preview {
    padding: 80px 0;
    background: var(--light-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--text-color);
    line-height: 1.8;
}

.cta-center {
    text-align: center;
}

/* ==================== DETAILED SERVICES ==================== */
.services-detailed {
    padding: 80px 0;
}

.service-detail {
    margin-bottom: 80px;
}

.service-detail-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.service-detail.reverse .service-detail-content {
    flex-direction: row-reverse;
}

.service-detail-icon {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: white;
}

.service-detail-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.service-detail-text p {
    font-size: 18px;
    margin-bottom: 25px;
    line-height: 1.8;
}

.service-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
}

.service-features i {
    color: var(--success-color);
    font-size: 18px;
}

/* ==================== WHY US ==================== */
.why-us {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.feature-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-item p {
    color: var(--text-color);
    line-height: 1.8;
}

/* ==================== TECHNOLOGIES ==================== */
.technologies {
    padding: 80px 0;
    background: var(--light-color);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.tech-item {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: scale(1.05);
}

.tech-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.tech-item span {
    display: block;
    font-weight: 600;
    color: var(--dark-color);
}

/* ==================== CTA SECTION ==================== */
.cta {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 80px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* ==================== PAGE HEADER ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 80px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 20px;
    opacity: 0.9;
}

/* ==================== ABOUT PAGE ==================== */
.about-section {
    padding: 80px 0;
}

.about-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
}

.about-intro h2 {
    font-size: 36px;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.about-intro .lead {
    font-size: 20px;
    line-height: 1.8;
    color: var(--text-color);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.about-card {
    background: var(--light-color);
    padding: 40px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.about-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.about-card p {
    line-height: 1.8;
}

/* ==================== STATS ==================== */
.stats-section {
    background: var(--primary-color);
    color: white;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 18px;
    opacity: 0.9;
}

/* ==================== EXPERTISE ==================== */
.expertise-section {
    padding: 80px 0;
    background: var(--light-color);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.expertise-item {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.expertise-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.expertise-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.expertise-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.expertise-item p {
    color: var(--text-color);
}

/* ==================== TEAM ==================== */
.team-section {
    padding: 80px 0;
}

.team-intro {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.team-intro p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* ==================== WHY CHOOSE ==================== */
.why-choose {
    padding: 80px 0;
    background: var(--light-color);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.reason-item {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.reason-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.3;
    margin-bottom: 15px;
}

.reason-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.reason-item p {
    line-height: 1.8;
    color: var(--text-color);
}

/* ==================== CONTACT ==================== */
.contact-section {
    padding: 80px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.contact-info > p {
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 20px;
}

.contact-text h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.contact-text p {
    color: var(--text-color);
}

.social-contact h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

/* ==================== CONTACT FORM ==================== */
.contact-form {
    background: var(--light-color);
    padding: 40px;
    border-radius: 12px;
}

.contact-form h2 {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

.success-message {
    background: var(--success-color);
    color: white;
    padding: 20px;
    text-align: center;
    margin-bottom: 30px;
}

.success-message i {
    font-size: 24px;
    margin-right: 10px;
}

/* ==================== FAQ ==================== */
.faq-section {
    padding: 80px 0;
    background: var(--light-color);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.faq-item {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.faq-item h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-item h3 i {
    color: var(--primary-color);
}

.faq-item p {
    line-height: 1.8;
    color: var(--text-color);
}

/* ==================== PROJECTS ==================== */
.projects-section {
    padding: 80px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.7));
    display: flex;
    align-items: flex-end;
    padding: 20px;
}

.project-category {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.project-content p {
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-color);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: var(--light-color);
    color: var(--primary-color);
    padding: 6px 15px;
    border-radius: 15px;
    font-size: 14px;
    font-weight: 500;
}

.project-stats {
    background: var(--light-color);
    padding: 60px 0;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.footer-col p {
    line-height: 1.8;
    opacity: 0.8;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-col ul li a:hover {
    opacity: 1;
}

.footer-col ul li i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.7;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .hero-logo img {
        width: 200px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .service-detail-content {
        flex-direction: column !important;
    }

    .service-features {
        grid-template-columns: 1fr;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero-logo img {
        width: 150px;
    }

    .hero-title {
        font-size: 28px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* ==================== FORM MESAJLARI ==================== */
.success-message,
.error-message {
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.success-message {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.success-message i {
    font-size: 24px;
}

.error-message {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.error-message i {
    font-size: 24px;
}